Questions and answers

How do you minimize errors in a titration?

How do you minimize errors in a titration?

To reduce the uncertainty in a burette reading it is necessary to make the titre a larger volume. This could be done by: increasing the volume and concentration of the substance in the conical flask or by decreasing the concentration of the substance in the burette.

What are some systematic errors in titration?

what are some possible systematic errors of titration?

  • Color changes of indicators are not instant, they are gradual over time.
  • Endpoint and equivalence point are different.
  • The glassware used in the titration are miscalibrated or not calibrated at all.

What can affect titration results?

The Titration Process Is Influenced by the Following Factors:

  • Measuring method.
  • Instrument (instrument uncertainty/abrasion of the burette)
  • Electrodes (electrode uncertainty/alteration of electrodes)
  • Handling.
  • Balance (weighing error)
  • Temperature.

What’s titration error?

At the equivalence point of a titration, an exactly equivalent amount of titrant has been added to the sample. The difference between the end point and the equivalence point is the titration error, which is kept as small as possible by the proper choice of an end-point signal and a method for detecting it.

What are sources of error?

Common sources of error include instrumental, environmental, procedural, and human. All of these errors can be either random or systematic depending on how they affect the results. Instrumental error happens when the instruments being used are inaccurate, such as a balance that does not work (SF Fig. 1.4).

What is random error?

Random error is a chance difference between the observed and true values of something (e.g., a researcher misreading a weighing scale records an incorrect measurement). With random error, multiple measurements will tend to cluster around the true value.

What are some sources of error in titration?

Several factors can cause errors in titration findings, including misreading volumes, mistaken concentration values or faulty technique. Care must be taken as the solution of the known concentration is introduced into a specific volume of the unknown through laboratory glassware such as a burette or pipette.

What are two possible sources of error specific to titration?

What are the sources of error in titration?